1
山东大学医学?/p>
?/p>
2005
—?/p>
2006
学年?/p>
二学期)
2003
?/p>
医学七年?/p>
药理学期末考试试题
?/p>
A
卷)
二、选择题:
?/p>
A
型每?/p>
0.5
分,
X
型每
?/p>
1
?/p>
,
?/p>
50
分)
Type A choice questions (only one answer is
correct)
1. Which of the following is classified as
belong to the G protein
coupling receptors?
A. GABAA receptor
B.
b
adrenergic
receptor
C. insulin receptor
D. nicotinic II receptor
E. hydrocortisone receptor
2. Which of the following is unlikely to be
associated with oral drug administration of
an
entericcoated
dosage form?
A. irritation to the gastric mucosa with
nausea and vomiting
B. destruction of the drug by gastric acid or
digestive enzymes
C. unpleasant taste of the drug
D. formation of nonabsorbable drugfood
complexes
E. variability in absorption caused by
fluctuations in gastric emptying time
3. Which of the following compounds will
be absorbed to the least extent in the
stomach?
A. ampicillin (pKa=2.5)
B. aspirin (pKa=3.0)
C. warfarin (pKa=5.0)
D. Phenobarbital (pKa=7.4)
E. propranolol (pKa=9.4)
4. Which of the following terms is most
likely to be associated w
ith “a rapid
reduction in the
effect of a given dose of a drug after only
one or two doses?
A. supersensitivity
B. tachyphylaxis
C. tolerance
D. hyposensitivity
E. anaphylaxis
5. A weak acidic drug with 4.4 of pKa, if the
stomach juice pH is 1.4, plasma pH is 7.4,
when
the distribution balance is reached, the
drug concentration ratio between plasma
and stomach
juice is
A. 100
B. 0.001
C. 1000
D. 10000
E. 0.01
6. In this graph
?/p>
drugs A
?/p>
B and C are
analogs
?/p>
then
A. A has a greater potency than B
B. A has a greater efficacy than C
C. B has less potency than C
D. A has a greater potency than C
E. B has a greater efficacy than C
7. Aspirin is a weak acid with 3.5 of pKa,
what percentage of lipidsoluble
form will be in the
stomach juice with 2.5 of pH?
A. 0.99%
B. 9%
C. 9.09%
D. 90.9%
E. 99.9%
8. The contractile effect of various doses of
norepinephrine (NE) (
X
) alone on vascular
smooth
muscle is represented in the figure below.
When combined with an antagonist (
IC
or
INC
), a
shift in the doseresponse
curve occurs. The curve labeled
X
+
INC
would mostly likely occur
when vascular smooth muscle is treated
with NE in the presen